When I tried Sephora by OPI Break a Leg Warmer, I thought it was really close to a couple of other greys in my collection, so I decided to do a couple of swatch comparison posts. Here’s China Glaze Concrete Catwalk vs Sephora by OPI Break a Leg Warmer. I did my best to show a couple of different light conditions. Concrete Catwalk is on the index and ring finger, and Break a Leg Warmer is on the middle and pinky. CC is definitely a couple of shades darker and though I thought it was blue-toned, it’s definitely got more black in it compared to Break a Leg Warmer. The comparison between these two made me think Break a Leg Warmer was a dupe for something else in my collection…